Computer Networking
The term 'duplex' refers to the ability of the data receiving stations to echo back a confirming message to the sender. In full duplex data transmission, both the sender and the receiver

can send or receive data one at a time
can receive and send data simultaneously
cannot talk at once
None of these
can do one way data transmission only

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Computer Networking
What is the purpose of Spanning Tree Protocol in a switched LAN?

To prevent switching loops in networks with redundant switched paths
To manage the VLAN database across multiple switches
To prevent routing loops in networks with redundant paths
To provide a mechanism for network monitoring in switched environments
To create collision domains

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